In traditional IFT (Interferential Current Therapy) technology, the therapeutic zone is limited to the 4-leaf area. As compensation, vector scanning function such as 90¢X swing was invented. However, there is still limitation.

In early 80s, PHYACTION firstly launched new IFT vector technology, leading IFT treatment to maximum effect. ISOPLANAR VECTOR gives 100% modulation depth in the whole area within four electrodes.

Another patented vector technology introduced by PHYACTION is DIPOLE VECTOR. The electrical current is modulated to flow diagonally and to rotate 360¢X creating a detonization (massage-like) effect.

Although the patent protection of the abovementioned vector technologies have expired and some manufacturers have claimed capable of replicating these technologies, PHYACTION is still rated the best IFT device by global users.